There is not a great deal of difference between the two rods the 201 isn't as crisp/stiff as the 181. I was told that the 181 is actually a baitcaster blank that somehow ended up on a spinning rod and people liked it.

I have a 203 for HB and decided on the 181 for SP.

In this video I am using the 181 if it is of any use to you. I have cast down to 1/32 on the 181 no probs.

The only thing that makes me still consider the 181 instead of the 201, is that many people (example this forum) rate Samurai's as "noodles", and for my mind Samurai are (my opinion is based solely on the Samurai Ledge (for herring light beach fishing) I possess) - an extra 'whippy' brand of rod. A very fast taper/action.

So maybe the 181 and little extra stiffness mind be the go my specific scenario/likeability?

You will be happy, awsome for sx40, chubby minnow, jade etc.
Fishing rods are a very personal choice but i like the 181, has a nice soft tip without too much noodle and a solid amount of power in the lower section.
The smaller diameter guide train match nicely with a 1000 size reel also.
Very light rod , weight wise👍